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Extinguishing rule (infosec.pub)

submitted 10 months ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 10 months ago* (last edited 10 months ago)

like 80% of US ISPs block port 25 outbound. you're not gonna be sending emails without going through some additional commercial entity forwarding that traffic.

sure, find a VPN provider that provisions PTR records correctly, and it's not too hard to get your mail delivered if you read the docs. it's also true that that's notably more restrictive than any other "open" communications protocol i'm accustomed to.